Checking the job log when using the Advanced
Open File Option

When a backup completes
successfully while using the Advanced Open File Option (AOFO),
information is displayed in the job log. Check the section Backup
Set Detail Information in the job log to make sure that AOFO was
used during the backup. If the backup included more than one
volume, this information is repeated for each volume.

If AOFO fails on
initialization, the backup still runs but the job is logged as
Completed with Exceptions in the job log.

If AOFO fails during the
backup of a device, that backup set is terminated and is reported
as an error.

Note:

If a
job that uses the Symantec Volume Snapshot Provider fails, an
active image may remain on the computer. The active image may cause
subsequent jobs to fail with an unknown error. If this occurs,
restart the computer to clear the active image.